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Unified description of the DC conductivity of monolayer and bilayer graphene based on resonant scatterers

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Resumo:We show that a coherent picture for the DC conductivity of monolayer and bilayer graphene emerges from considering that strong short-range potentials are the main source of scattering in these two systems. The origin of the strong short range potentials may lie in adsorbed hydrocarbons at the surface of graphene. The equivalence between results based on the partial wave description of scattering and the T-matrix approach is established. The scattering formalism for electrons in a biased bilayer graphene is developed and the DC conductivity of that system is studied.
Autores principais:Ferreira, Aires
Outros Autores:Gomes, J. Viana; Nilsson, Johan; Mucciolo, E. R.; Peres, N. M. R.; Castro Neto, A. H.
Assunto:Graphene
Ano:2011
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

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